Hoping someone can help solve our issue with our solar system. We have Helicol solar panels (7), with a 3 way actuator. It's been working fine for about 6 years, but now on both heating and nocturnal cooling, the valve opens and the pump speed raises just fine. However, when the temp reaches the set point, the intellicenter app shows that the solar has stopped heating or cooling, but the pump speed stays up and the valve does not close. If we hard boot the intellicenter panel, the valve closes and stays closed and the pump speed comes back down.
We've checked the wires and they seem fine. It's seems as if the communication is good to open the valve and raise the pump, but not to close the valve and lower the pump speed. Could this be a bad actuator? It turns easily both ways manually. The shaft was replaced a few months ago.
We've checked the wires and they seem fine. It's seems as if the communication is good to open the valve and raise the pump, but not to close the valve and lower the pump speed. Could this be a bad actuator? It turns easily both ways manually. The shaft was replaced a few months ago.
